Home / 10,913.40-16,378.20-4,344.30

Finding the Fourth Proportional to 10,913.40, 16,378.20 and 4,344.30

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Solution

The fourth proportional to 10,913.40, 16,378.20 and 4,344.30 is: 6,519.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,913.40 : 16,378.20 = 4,344.30 : x
  2. Step 2: Convert to fraction form
    10,913.40/16,378.20 = 4,344.30/x
  3. Step 3: Cross multiply
    10,913.40x = 16,378.20 × 4,344.30
  4. Step 4: Simplify right side
    10,913.40x = 71,151,814.26
  5. Step 5: Solve for x
    x = 71,151,814.26/10,913.40
  6. Step 6: Final answer
    x = 6,519.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.